CN102606930B - Modularized LED (light emitting diode) lamp - Google Patents

Abstract

The invention discloses a modularized LED lamp. The modularized LED lamp comprises at least one LED lamp module, wherein the LED lamp module includes a secondary light distribution lens, a package case, a circuit board, and an LED chip communicated with the circuit on the circuit board, wherein the secondary light distribution lens includes a collimating lens and a flat lens arranged on the front end face of the collimating lens; the collimating lens has a fully reflecting surface on the side surface; the light emergent surface of the flat lens consists of a plurality of rectangular pyramid-shaped micro-lenses; a refraction groove for placing the LED chip is arranged on the rear end face of the collimating lens; a recess is formed on the side surface of the collimating lens close to the flat lens; a bump matching the recess is arranged on the package case; and a jack is arranged on the package case and is connected with a conducive metal part communicated with the circuit on the circuit board. The modularized LED lamp provided by the invention can be extended randomly according to requirement without limit to installation conditions, and the spliced LED lamp module has no dark zones or dark spots.

Description

A kind of LED modular lamp

technical field

The invention relates to the field of splicable LED modular lamps, in particular to an LED modular lamp capable of splicing without dark areas.

Background technique

LED light source is playing an increasingly important role in the field of lighting in the world because of its significant advantages such as high brightness, good shock resistance and shock resistance, long service life, and high light efficiency. Countries have increased research on LED light sources. The development prospect is very impressive.

The LED strip light in the prior art has a single form, a relatively narrow scope of application, and low flexibility. Basically, one type of light can only be used in one fixed position in one fixed form. The structure of LED strip lights is fixed and cannot be expanded to meet the increasingly diverse needs of the world. With the development of technology, although some connectable LED lamp groups have appeared, their innovation is only in the connection of the lamp housing, and they cannot achieve seamless splicing between lamps, resulting in There are dark areas or black spots between the lamp groups, which affects the illumination effect of the light source, and the heat dissipation effect between the lamp groups is also very poor. The splicing between lamps and lamps existing in the prior art, the connector used to connect the lamp group is the external connection cap or the non-concealable protruding part of the lamp housing itself, which affects the appearance of the lamp group. At the same time, there are dark areas or black spots in the connected light group, and there are technical problems.

The Chinese patent with the patent number ZL 200920130950.0 discloses a connection structure of LED lights and an LED light group using the structure, including: a first installation end and a second installation end, the first installation end and the second installation end ends are respectively arranged at both ends of the LED lamp body, the first mounting end is a protruding connector or a groove, the second mounting end is a groove or a protruding connector, and the LED lamp group includes A plurality of LED lamps, the head and the tail of each LED lamp are connected in a snap-in manner. The technical solution of this utility model adopts the close connection between the head and tail of the LED lamp body, so that the integrity of the LED lamp group is good, and there will be no black spots between the LED lamps during lighting, but the lamps cannot be seamless Splicing, there are technical defects.

The Chinese patent No. ZL 200920054403.9 discloses an LED module lamp, which includes at least one LED module. The LED module includes an encapsulation housing, a circuit board of the LED lamp is arranged in the housing, and a control panel is installed inside the housing. The circuit board of the LED lamp is provided with a fastening device on the periphery of the housing for splicing adjacent modules together. The disclosed technical solution connects the lamp groups through the fastening device, which eliminates the defect of conventional LED lamps that are limited by space when installed and used, and greatly meets the needs of consumers, but it cannot achieve seamless connection between lamps. Splicing, at the same time, cannot eliminate the dark area caused by the splicing between lamps and lamps, which affects the lighting effect of the light, and there are technical defects.

The Chinese patent No. ZL 200920135065.1 discloses a portable combined LED light panel module for photography, which includes a unit LED light panel module and a battery. The unit LED light panel module is a rectangular module, and the middle part of the opposite two sides Each has a connection groove and a connection protrusion, and the unit LED lamp panel modules are plugged and connected through the connection grooves and the connection protrusions to form a module group. The disclosed technical solution uses connectors to make the number of LED lamp panels superimposed and spliced without an upper limit, which can meet the photography needs of large illumination area and uniform illumination, but the seamless splicing between the lamp panels cannot be achieved, and at the same time, the gap between the lamp panels cannot be eliminated. The resulting dark area affects the irradiation effect of light, and there are technical defects.

Therefore, it is necessary to provide an improved LED modular lamp splice to overcome the shortcomings and deficiencies in the prior art.

Contents of the invention

The invention provides an LED modular lamp, which can be freely expanded according to needs, is not limited by installation conditions, and there is no dark area or black spot after the LED lamp modules are spliced.

An LED modular lamp, comprising at least one LED lamp module, the LED lamp module includes a secondary light distribution lens, a packaging shell fixedly connected to the secondary light distribution lens, and a The circuit board between and the LED chip arranged on the circuit board and connected with the circuit on the circuit board;

The secondary light distribution lens includes a collimating lens and a flat lens arranged on the front end of the collimating lens, the side of the collimating lens is a total reflection surface, and the light emitting surface of the flat lens is composed of several quadrangular pyramid microlenses. The rear end surface of the straight lens is provided with a refraction groove for placing the LED chip, the side of the collimator lens close to the flat lens is provided with a groove, and the package shell is provided with a protrusion matching the groove;

The package shell is provided with a jack, and the jack is connected with a conductive metal piece connected with the circuit on the circuit board.

The front and rear end surfaces of the collimator lens are arranged front and rear along the direction of the light path, that is, the light-emitting surface of the collimator lens is the front end surface, and the other surface is the rear end surface.

In order to achieve better invention effects, the following are preferred as the present invention:

There are eight sockets and conductive metal parts, one socket and one conductive metal part are set up on four sides of the packaging shell respectively, and two groups are set on each side. Since the circuit on the circuit board is connected with the conductive metal parts, two conductive metal parts are connected on each side, and the two pins on the circuit board are respectively drawn out for connecting with the power supply and/or for connecting the LED lamp modules to each other. In the splicing mode, the circuits between the LED lamp modules are connected, thereby replacing the power lines and forming a connected circuit. Generally, the circuit board can be a PCB board. In order to facilitate the connection between the circuit board and the conductive metal parts, the cross-section of the conductive metal parts is a regular hexahedron. The conductive metal parts are copper parts.

One side of the circuit board is arranged on the rear end face of the collimating lens, and the other side of the circuit board is connected with the conductive metal parts, which reduces the use of conductive lines, thereby increasing the flow space of the internal air, and can better monitor the LED chips. Heat dissipation, effectively prolonging the service life of LED chips.

The LED modular lamp includes more than two LED lamp modules, and the threaded through holes provided inside the conductive metal parts and the conductive metal connectors matched with the threaded through holes are passed between each LED lamp module. Connection can realize the splicing of LED light modules, and at the same time can achieve seamless splicing between the light emitting surfaces of the module lights, so that there is no dark area or black spot in the light output effect of the LED modular light group obtained after splicing, and the illumination is uniform. The conductive metal connector is an independent unit, which facilitates the assembly and disassembly of the modular light. Both the conductive metal parts and the conductive metal connecting parts are copper parts.

In another form of splicing, the LED modular lamp includes more than two LED lamp modules, and the flip-type inserts arranged on the packaging shell are passed between the LED lamp modules, and the flip-type inserts are arranged on the pack Mating socket combination connections. The flip-type plug-in is concealable, and when the flip-type plug-in is not in use, it is turned over and placed in the lamp body packaging shell, so that the plug-in is hidden in the lamp body's packaging shell, so as not to affect the overall appearance of the lamp. Effect. The flip-type plug-in is connected and conducted with the conductive metal piece through a wire or a contact method.

The collimating lens is a strip lens whose cross section is trapezoidal or approximately trapezoidal, and the area of the front end face of the collimating lens is greater than the area of the rear end face of the collimating lens, so that the collimating lens has a better reflection effect and can The light source emitted by the LED chip is evenly emitted through the light emitting surface of the flat lens, which ensures the light emitting effect. The side surface of the collimator lens is a smooth curved surface, and the front surface of the collimator lens is closely attached to the light incident surface of the flat lens, which further increases the light output effect of the collimator lens and the light dispersion effect of the flat lens.

The light-emitting surface of the flat-panel lens is composed of an array of closely arranged quadrangular pyramid-shaped micro-lenses of the same size, so that the light emitted from the light-emitting surface of the flat-panel lens is scattered, so that the light distribution is uniform and the irradiation is not dazzling. Effect.

The refraction groove is cylindrical, and the bottom of the refraction groove is convex. The function is to disperse the light source emitted by the LED chip through the convex surface, so that the light distribution is uniform, and the light is not concentrated and not dazzling.

The secondary light distribution lens is made of transparent materials, such as polymethacrylate (PMMA), polycarbonate (PC) and other transparent plastics, and these transparent materials can improve the light emitting effect of the LED chip.

The packaging shell can be made of aluminum alloy material by one-time processing and molding, and after the aluminum alloy is processed and formed, an insulating paint is sprayed on its surface to make it non-conductive. This processing technology is low in production cost, simple in processing, and aluminum The package shell made of alloy has the advantages of light weight and high strength, which can well meet the requirements of use.

Compared with prior art, the present invention has following advantage:

In the present invention, through the improvement of the structure of the LED lamp module, the connection between the conductive metal connectors or/and the combined connection of the overturned plug-in and the slot matching the plug-in can realize the connection between the light-emitting surfaces of at least two LED lamp modules. Seamless splicing, splicing can be vertical seamless splicing or horizontal seamless splicing, not limited by space, different seamless splicing methods can be used according to needs, which greatly improves the space structure utilization of LED modular lights , can also meet the diverse requirements of different customers to a great extent. The LED modular lights obtained after splicing do not have dark areas or black spots, do not gather light and are not dazzling, and have uniform illumination.

In the LED modular lamp of the present invention, there is no need to wire between the LED lamp module and the LED lamp module, and the power line is directly replaced by the conductive metal piece and the conductive metal connector, so that the circuit between the LED lamp module and the LED lamp module is connected. The internal structure space and production cost of the LED lamp module are saved.

There is a large gap inside the packaging shell of the LED lamp module in the LED modular lamp of the present invention, and the gap is conducive to air circulation and has the effect of rapid heat dissipation.

Description of drawings

Fig. 1 is the structural representation of LED lamp module of the present invention;

Fig. 2 is a B-direction view of the LED lamp module in Fig. 1;

Fig. 3 is a view from direction A of the LED lamp module in Fig. 1;

Fig. 4 is a schematic diagram of the internal structure of the LED lamp module in Fig. 1 cut along line C-C;

Fig. 5 is the structural representation of secondary light distribution lens of the present invention;

Fig. 6 is a structural schematic diagram of the packaging shell and the conductive metal parts of the present invention;

Fig. 7 is a schematic structural diagram of an LED modular lamp spliced horizontally with conductive metal connectors;

Fig. 8 is a structural schematic diagram of an LED modular lamp longitudinally spliced with conductive metal connectors;

Fig. 9 is a structural schematic diagram of a conductive metal connector;

Fig. 10 is a structural schematic diagram of a flip-up plug-in and a matching slot combined with a horizontally spliced LED modular lamp;

Fig. 11 is a schematic structural view of a vertically spliced LED modular lamp combined with a flip-type plug-in and a matching slot.

Detailed ways

As shown in Figures 1 to 5, it is an LED lamp module, including a secondary light distribution lens 1, an encapsulation shell 2 fixedly connected to the secondary light distribution lens 1, and arranged between the secondary light distribution lens 1 and the encapsulation shell 2 The circuit board 3 and the LED chip 4 arranged on the circuit board 3 and connected to the circuit on the circuit board 3, the light emitted by the LED chip 4 passes through the secondary light distribution lens 1 and then illuminates. The packaging shell 2 is provided with a jack 21, and the jack 21 is connected with a conductive metal piece 22, so that the power cord can be replaced during splicing, and there is no need to pull the cord.

As shown in Figures 4 to 5, the secondary light distribution lens 1 includes a collimating lens 11 and a flat lens 12 arranged on the front end of the collimating lens 11. Composed of several quadrangular pyramid-shaped microlenses 13, the rear end surface of the collimator lens 11 is provided with a refraction groove 14 for placing the LED chip 4, the refraction groove 14 is cylindrical, and the bottom of the refraction groove 14 is convex. The refraction groove 14 disperses the light emitted by the LED chip 4 and emits it through the collimator lens 11 and the flat lens 12, so that the light distribution is even and soft. A groove 15 is provided on the side of the collimating lens 11 close to the flat lens 12 , and a protrusion 16 matching the groove 15 is provided on the packaging shell 2 , so as to fix the collimating lens 11 and the packaging shell 2 .

The collimator lens 11 is a strip lens whose cross section is trapezoidal or approximately trapezoidal. There are multiple LED chips 4 and refraction grooves 14. The LED chips 4 are equidistantly arranged on the circuit board 3. The area of the front end of the collimator lens 11 is larger than The area of the rear end surface of the collimator lens 11. The side surface of the collimating lens 11 is a smooth curved surface. The front end surface of the collimator lens 11 is in close contact with the light incident surface of the flat lens 12 to achieve a better light emission effect.

The light-emitting surface of the flat lens 12 is composed of an array of closely arranged quadrangular pyramid-shaped microlenses 13 of the same size, which scatters the light and reduces the glare of the light to the human eye.

As shown in FIG. 4 and FIG. 6 , one side of the circuit board 3 is arranged on the rear end surface of the collimator lens 11 , and the other side of the circuit board 3 (ie, the side away from the collimator lens 11 ) communicates with the conductive metal piece 22 . There are eight jacks 21 and conductive metal pieces 22 , one jack and one conductive metal piece form a group, which are respectively arranged on four sides of the packaging shell 2 , and two groups are arranged on each side. Two conductive metal parts 22 are connected on each side, and the two pins on the circuit board 3 are drawn out to communicate with the power supply and/or to connect the circuits between the LED lamp modules when the LED lamp modules are spliced with each other. , thus replacing the power line to form a connected circuit. Generally, the circuit board 3 can be a PCB board. In order to facilitate the communication between the circuit board 3 and the conductive metal part 22, the cross section of the conductive metal part 22 is a regular hexahedron, and the conductive metal part 22 is perpendicular to the splicing side.

As shown in FIG. 6 , the encapsulation shell 2 is provided with cooling holes 25 , leaving a large gap inside the encapsulation shell 2 to facilitate air circulation for heat dissipation, further increasing the heat dissipation effect.

As shown in Figure 7 and Figure 8, the LED modular lamp includes two LED lamp modules, the conductive metal part 22 is provided with a threaded through hole inside, and the outer wall matched with the threaded through hole is passed between each LED lamp module. The conductive metal connector 5 with threads is connected, and the conductive metal connector 5 is shown in FIG. 9 . Both the conductive metal piece 22 and the conductive metal connecting piece 5 are copper pieces. In FIG. 7 , two LED lamp modules are vertically connected through conductive metal connectors 5 , and in FIG. 8 , two LED lamp modules are laterally connected through conductive metal connectors 5 . Of course, there can be more LED light modules, which can be expanded horizontally and vertically according to their own needs to meet the needs of use.

As shown in FIG. 10 and FIG. 11 , it includes two LED lamp modules, which are combined and connected through a flip-type plug-in 23 provided on the package shell 2 and a slot 24 matched with the flip-type plug-in 23 on the package shell 2 . The overturned insert 23 is connected to the conductive metal piece 22 through wires or contacts. In Fig. 10, the two LED lamp modules are spliced horizontally through the combination of the overturned plug-in 23 and the matching slot 24 on the packaging shell 2; The matching slots 24 on the top are combined and spliced longitudinally. Of course, there can be more than one LED light module, and horizontal and vertical expansion can be carried out according to one's own needs, so as to meet the needs of use.

Claims (4)

1. a LED module lamp, comprise plural LED lamp module, it is characterized in that, described LED lamp module comprises secondary light-distribution lens, the package casing being fixedly connected with secondary light-distribution lens, be arranged on the circuit board between secondary light-distribution lens and package casing and be arranged on circuit board and with circuit board on the LED chip of circuit communication;

Described secondary light-distribution lens comprises collimation lens and is arranged on the flat-plate lens of collimation lens front end face, the side of collimation lens is fully reflecting surface, the array that the exiting surface of flat-plate lens is formed by the identical tetrapyamid shape lenticule close-packed arrays of several sizes forms, the rear end face of collimation lens is provided with the refracted slot of placing LED chip, collimation lens is provided with groove near the side of flat-plate lens, and package casing is provided with the projection matching with groove; Described collimation lens is that cross section is the rod lens of trapezoidal or approximate trapezoid, the area of the front end face of this collimation lens is greater than the area of the rear end face of collimation lens, the side of described collimation lens is smooth surface, and the front end face of described collimation lens and the incidence surface of flat-plate lens fit tightly;

Described package casing is provided with jack, jack be connected with circuit board on the conducting metal part of circuit communication, the cross section of described conducting metal part is positive six shapes, described jack and conducting metal part are eight, a jack and a conducting metal part are one group, four sides that are separately positioned on package casing, arrange two groups on each side;

Between each LED lamp module, by the conducting metal connector that is arranged on the threaded through hole of conducting metal part inside and match with described threaded through hole, be connected.

2. LED module lamp according to claim 1, is characterized in that, described conducting metal part is copper part.

3. LED module lamp according to claim 1, is characterized in that, described conducting metal connector is copper part.

4. LED module lamp according to claim 1, is characterized in that, described refracted slot is cylindrical shape, and the bottom of refracted slot is convex.

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